The Rise of Cloud Infrastructure Hijacking

A new threat actor, tracked as "PCPJack," has emerged with a sophisticated playbook: hijacking cloud infrastructure across AWS, Google Cloud, and Microsoft Azure.

Unlike traditional data-theft breaches, PCPJack is weaponizing compromised cloud environments to build a massive, covert SMTP email relay network.

Why this matters:

1- Infrastructure Abuse: Your cloud resources are being leveraged to bypass spam filters and distribute malicious content.

Cost & Compliance: Beyond the security risk, this results in unexpected spikes in cloud egress costs and potential blacklisting of your IP ranges.

2- Stealth: By operating from trusted cloud environments, the relay network gains high deliverability, making detection significantly harder.

It’s a stark reminder that Cloud Security Posture Management (CSPM) and Egress Filtering are no longer "nice to haves."

#CloudSecurity #CyberSecurity #AWS #GoogleCloud #Azure #InfoSec #ThreatIntelligence